CA2083442A1 - Velocity change sensor with lateral shock absorber - Google Patents

Velocity change sensor with lateral shock absorber

Info

Publication number
CA2083442A1
CA2083442A1 CA2083442A CA2083442A CA2083442A1 CA 2083442 A1 CA2083442 A1 CA 2083442A1 CA 2083442 A CA2083442 A CA 2083442A CA 2083442 A CA2083442 A CA 2083442A CA 2083442 A1 CA2083442 A1 CA 2083442A1
Authority
CA
Canada
Prior art keywords
shock absorber
velocity change
change sensor
lateral shock
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2083442A
Other languages
French (fr)
Other versions
CA2083442C (en
Inventor
Allen Breed
Torbjorn Thuen
Carl T. Grossi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Breed Automotive Technology Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2083442A1 publication Critical patent/CA2083442A1/en
Application granted granted Critical
Publication of CA2083442C publication Critical patent/CA2083442C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/33—Arrangements for non-electric triggering of inflation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/135—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by making use of contacts which are actuated by a movable inertial mass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/141—Details
    • H01H35/142—Damping means to avoid unwanted response

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

An accelerometer for a passenger restraint system in a motor vehicle includes a housing with tube for defining a path for an inertial element, and a biasing member for urging the inertial element toward a preselected position. A shock absorbent resilient ring is disposed between the tube and the housing and supports the tube.
CA002083442A 1991-12-31 1992-11-20 Velocity change sensor with lateral shock absorber Expired - Fee Related CA2083442C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/815,436 US5178410A (en) 1991-06-14 1991-12-31 Velocity change sensor with lateral shock absorber
US815,436 1991-12-31

Publications (2)

Publication Number Publication Date
CA2083442A1 true CA2083442A1 (en) 1993-07-01
CA2083442C CA2083442C (en) 1996-10-29

Family

ID=25217780

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002083442A Expired - Fee Related CA2083442C (en) 1991-12-31 1992-11-20 Velocity change sensor with lateral shock absorber

Country Status (8)

Country Link
US (1) US5178410A (en)
JP (1) JP2534961B2 (en)
CA (1) CA2083442C (en)
DE (1) DE4243101A1 (en)
FR (1) FR2685778B1 (en)
GB (1) GB2263019B (en)
IT (1) IT1257303B (en)
SE (1) SE9203457L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140691A1 (en) * 1991-12-10 1993-06-17 Trw Repa Gmbh VEHICLE-SENSITIVE MECHANICAL CONTACTOR
US5920045A (en) * 1994-06-29 1999-07-06 Nippondenso Co., Ltd. Acceleration detecting device
US5914470A (en) * 1994-06-29 1999-06-22 Denso Corporation Acceleration detecting device
US5756948A (en) * 1996-12-31 1998-05-26 Breed Automotive Technology, Inc. Side-impact electro-mechanical accelerometer to actuate a vehicular safety device
US5965855A (en) * 1997-01-14 1999-10-12 Casio Computer Co., Ltd. Detecting device, method for manufacturing the detecting device and electronic apparatus using the detecting device
JP3687285B2 (en) 1997-07-02 2005-08-24 カシオ計算機株式会社 Tilt detection device
DE102011086656A1 (en) * 2011-11-18 2012-05-03 Takata-Petri Ag Sensor for triggering e.g. belt retractor in motor car, has housing portion made of softer material than carrier element and comprising snatching element, which performs snatching of housing rear wall in through hole of carrier device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097699A (en) * 1976-09-07 1978-06-27 Eaton Corporation Viscous damped crash sensor unit with inertia switch
US4329549A (en) * 1980-04-29 1982-05-11 Breed Corporation Magnetically biased velocity change sensor
US4666182A (en) * 1984-02-15 1987-05-19 Breed Corporation Non crush zone-all mechanical damped sensor
US4915411A (en) * 1988-01-25 1990-04-10 Peter Norton Crash sensor with improved activation for stabbing primer
US4900880A (en) * 1988-08-15 1990-02-13 Automotive Technologies International, Inc. Gas damped crash sensor
US4933515A (en) * 1989-03-09 1990-06-12 Automotive Systems Laboratory, Inc. Accelerometer with dual-magnet sensing mass
DE4031327A1 (en) * 1989-10-06 1991-04-11 Breed Automotive Tech ACCELERATION SENSOR, IN PARTICULAR FOR Passenger Restraint Systems In A VEHICLE
US5005861A (en) * 1989-10-19 1991-04-09 Breed Automotive Technology, Inc. Velocity change sensor with double pole sensor
US5237134A (en) * 1989-12-06 1993-08-17 Breed Automotive Technology, Inc. Gas damped crash sensor
US5098122A (en) * 1989-12-06 1992-03-24 Breed Automotive Velocity change sensor with improved spring bias
US5053588A (en) * 1990-02-20 1991-10-01 Trw Technar Inc. Calibratable crash sensor
US5012050A (en) * 1990-02-23 1991-04-30 Siemens Automotive Limited Dual pole switch assembly for an inertia actuated switch

Also Published As

Publication number Publication date
IT1257303B (en) 1996-01-12
JP2534961B2 (en) 1996-09-18
GB9224043D0 (en) 1993-01-06
SE9203457L (en) 1993-07-01
CA2083442C (en) 1996-10-29
SE9203457D0 (en) 1992-11-18
JPH0643181A (en) 1994-02-18
GB2263019B (en) 1995-10-25
GB2263019A (en) 1993-07-07
US5178410A (en) 1993-01-12
ITTO920950A1 (en) 1994-05-24
FR2685778B1 (en) 1995-10-13
DE4243101A1 (en) 1993-07-01
FR2685778A1 (en) 1993-07-02
ITTO920950A0 (en) 1992-11-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed